Asubstance is tested and is found to have the following physical properties: high electrical conductivity malleability high luster the substance is most likely a a. metal b. metalloid c. nonmetal d. cannot be determined without more data

The correct answer is A. Metal

Explanation:

Metals are chemical elements and materials characterized by their high electrical conductivity due to the structure of electron in them different from nonmetals that have a low electrical conductivity. Besides this, metals are characterized by high malleability and high luster, the malleability means they can change their shape without breaking and in the case of metals they can be made into sheets which make then highly malleable different from nonmetals and metalloids that do not show malleability; on the other hand, high luster means they look shiny which make them different from nonmetals that are not shiny and metalloids that can be shiny or not shiny. Thus, the substance with high luster, malleability, and electrical conductivity is a metal.

explanation:

crosscutting concepts have application across all domains of science. as such, they are a way of linking the different domains of science. they include patterns; cause and effect; scale, proportion, and quantity; systems and system models; energy and matter; structure and function; and stability and change.

plasma is the state of matter where the substance is ionized and has no definite shape or volume. the fact of being ionized makes the substance a good electrical conductor.